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Prime-Line 9055591 Hex Lag Screws, 5/16 In. X 2 In., A307 Grade A Zinc Plated Steel (50 Pack)

4.8 (9) Write Review
Free shipping on orders over $29.99

$20.49

$ 9 .99 $9.99

In Stock

About this item

  • Size: 5/16 inch X 2 inch
  • Heavy duty wood screw with 6 sided hex bolt head
  • Features deep wood screw threads and does not accept a nut
  • Used in applications where standard wood screws cannot support the load (deck building, etc.)
  • Requires pilot hole to be drilled and installs using wrench or socket tool


Lag screw bolts are used in place of standard wood screws whenever the mounting surface must bear a heavy load. The hex head allows for lag screws to be tightened with more torque than can be used on Phillips head screws, though a pilot hole is still required prior to installation. Note that lag screws do not accept nuts as they are technically thick heavy duty wood screws with threads designed to cut into wood. They are ideal for use on decks since installation can be accomplished without having access to both ends of the fastener, as opposed to standard hex bolts that require a nut on the opposite end.


Not Old School, but Antique University
Reviewed in the United States on January 18, 2024
These are good strong screws, but the measurement reflects the overall length rather than using the standard measurement system of measuring from the bottom of the cap (measuring the shank and thread portions, also called the body). As long as you know they are 1/8 inch shorter than expected, they are fine.
HvYHtR
Reviewed in the United States on March 4, 2023
It performs good. But then again. How do you screw up making a bolt.
JUSTIN T.
Reviewed in the United States on October 1, 2023
Righty tighty.
M. Sanker
Reviewed in the United States on September 1, 2022
What can you say about a bolt. They work well, if they did not I guess it would be something to say about them.
Vezala
Reviewed in Canada on October 26, 2022
utilisé pour portique d'hiver. Solide
FOG
Reviewed in the United States on March 11, 2021
does what a lag bolt does.no complaints
J. Koo
Reviewed in the United States on February 24, 2020
Worked as expected. Pre-drilling helps. Do yourself a favor and pick up the correct size socket head and drive in with a power tool. My drill did smell funny after driving 16 of these into 4x4’s but that was better than a sore arm.
chas long
Reviewed in the United States on January 8, 2020
good price fast shipping happy
RyanEnergizer
Reviewed in the United States on January 29, 2019
Perfect for hanging metal shelves on to wall studs, buying more